velcro4.wav
(c) HerbertBoland
https://freesound.org/s/28549/
https://creativecommons.org/licenses/by/4.0/

thunk.wav
https://freesound.org/s/252265/
https://creativecommons.org/publicdomain/zero/1.0/

thunk_big.wav
https://freesound.org/s/332668/
https://creativecommons.org/publicdomain/zero/1.0/

extinguisher.wav
https://freesound.org/s/155516/
http://creativecommons.org/publicdomain/zero/1.0/

cameraShutter.wav
(c) hcolq
https://freesound.org/s/253342/
https://creativecommons.org/licenses/by/4.0/

stickyNote.wav
Modified from original: trimmed 
https://freesound.org/s/461803/
http://creativecommons.org/publicdomain/zero/1.0/